Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
6 × 10 = ______
89 + 20 = ______
74 + 10 = ______
34 + 10 = ______
68 − 10 = ______
89 + 10 = ______
94 − 10 = ______
47 − 10 = ______
63 − 10 = ______
18 + 20 = ______
39 + 10 = ______
3 × 10 = ______
1 × 10 = ______
87 + 20 = ______
12 + 10 = ______
5 × 10 = ______
58 − 10 = ______
62 − 10 = ______
14 + 10 = ______
9 × 10 = ______
